| 摘要 |
Disclosed are a message transmission method and device and a communication system, which relate to the field of communications, and can improve, in the environment of a mobile core network with separated forwarding plane and control plane, the success rate of transmitting a message from the mobile core network to an external network. The method comprises: determining an external gateway to which a data message needs to be sent; acquiring a MAC address of the external gateway via a forwarding plane apparatus; and sending a processing rule to the forwarding plane apparatus so that the forwarding plane apparatus processes the data message according to the processing rule, wherein the processing rule comprises the MAC address and is used for indicating sending the data message to the external gateway, and the external gateway is located in an external network connected to a core network. The present invention is applicable in message transmission. |
